// Javascript for running presentations, mangled beyond recognition from // developer.netscape.com/docs/technote/javascript/prestemp/prestemp.html // first load list of slides (href and titles): // slides = [ // "index.htm", "Index Slide Title", // "title.htm", "", // "body.htm", "Body Slide Title", // ]; // // Slides should load slide.js and style.js in the section, header.js // at the beginning of the section, and footer.js at the end of the // section. // // These javascript functions are provided: // goto_slide(slide_num) go to a specific slide // next_slide(), prev_slide() move forward or backward ////////////////////////////////////////////////////////////////////// // slide navigation // size of slide show last_slide = slides.length/2 - 1; if (last_slide < 0) last_slide = 0; // get current slide number var current_slide; cookie_name="slide" // try cookie if (! current_slide) { offset = document.cookie.indexOf(cookie_name+"="); if (offset != -1) { start = document.cookie.indexOf("=",offset) + 1; end = document.cookie.indexOf(";",start); if (end == -1) end = document.cookie.length; current_slide = parseInt(unescape( document.cookie.substring(start,end))); } } // try URL (basename?slidenum) // get current slide from URL (baseurl?slidenum) if (! current_slide) { splitURL = new String(location).split("?"); if (splitURL.length == 2) current_slide = parseInt(splitURL[1]); } // default = first slide if (! current_slide) current_slide = 0; // make sure it's in range if (current_slide < 0) current_slide = 0; if (current_slide > last_slide) current_slide = last_slide; var slidetitle = slides[2*current_slide+1]; // Go to slide number slide_num. function goto_slide(slide_num) { slide_num = parseInt(slide_num); if(slide_num >= 0 && slide_num <= last_slide) { // try to set in cookie document.cookie = cookie_name+"="+slide_num; if (document.cookie.indexOf(cookie_name+"=") != -1) location = slides[2*slide_num]; else // fall back to adding to location location = slides[2*slide_num] + "?" + slide_num; } } // Display slides in sequence. function prev_slide() {goto_slide(current_slide - 1);} function next_slide() {goto_slide(current_slide + 1);}